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单词 transonic
释义

WordReference Random House Unabridged Dictionary of American English © 2024
tran•son•ic  (tran sonik),USA pronunciation adj. [Chiefly Aeron.]
  1. close to the speed of propagation of sound;
    moving at 700–780 mph (1127–1255 km/h) at sea level.
Also, transsonic.
  • trans- + sonic 1940–45

Collins Concise English Dictionary © HarperCollins Publishers::
transonic /trænˈsɒnɪk/ adj
  1. of or relating to conditions when travelling at or near the speed of sound
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